/* ==========================================================================
   Estafette : base (réinitialisation, typographie, utilitaires)
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--topbar-height) + var(--space-4));
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  /* Pas de mot isolé en fin de paragraphe (titres : équilibrage, plus bas). */
  text-wrap: pretty;
}

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

h1 { font-size: var(--text-2xl); letter-spacing: -0.025em; }
h2 { font-size: var(--text-xl); }
h3 { font-size: var(--text-lg); font-weight: 650; }
h4 { font-size: var(--text-md); font-weight: 650; }

p { margin: 0; }

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover { text-decoration-thickness: 2px; }

img, svg { display: block; max-width: 100%; }

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button { cursor: pointer; }

code, kbd, .mono {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

kbd {
  padding: 0.1em 0.4em;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: var(--space-6) 0;
}

::selection {
  background: color-mix(in srgb, var(--saffron) 45%, transparent);
}

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

/* Après un clic à la souris, pas de cadre de focus sur les boutons ; il reste au clavier. */
:root[data-input="pointer"] :is(summary, button, .btn, .icon-btn):focus { outline: none; }

/* Titres et zones ciblés par programme (navigation) : pas de cadre de focus. */
[tabindex="-1"]:focus,
h1:focus { outline: none; }

/* Utilitaires -------------------------------------------------------------- */

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.muted { color: var(--fg-muted); }
.subtle { color: var(--fg-subtle); }
.small { font-size: var(--text-sm); }
.tabular { font-variant-numeric: tabular-nums; }

.stack { display: flex; flex-direction: column; gap: var(--space-4); }
.stack-sm { display: flex; flex-direction: column; gap: var(--space-2); }
.cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); }
.spread { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-3); }

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}

@media (max-width: 900px) {
  .grid-2 { grid-template-columns: minmax(0, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}